Yeah, I wanted to see them utilize more of the alien locations, like the drilling plant. Have the characters make use of their surrounding and alien locations, like integrating a drill rig or some type of alien machinery during a shootout/chase to aid in injuring or killing one of the Super Preds. It's something they could still do for a sequel.
I don't mind the "super predator" angle and Predators did make it sound like they were simply a larger breed/different tribe of the Predator species, which I prefer over the DNA splicing. But I think they failed at making them look larger and more menacing.
On the note of Super Preds and different species, I'd still like to see a proper rendition of Bad Blood Predators. I like the idea of a futuristic city setting, similar to that of Concrete Jungle's, and have a detective caught amidst a crime riddled city and 2 rogue, feuding preds. Throw the stolen Predator technology into the mix and it could make for some fun storytelling. But I think The Predator has tainted the chances for a Predator story like that to come to fruition any time soon... hell, it may have soiled the entire franchise.